青苔在微污染水体生态净化系统中的发生与防治

The Occurrence and Prevention of Filamentous Algae in Ecological Purification System of Micro-polluted Source Water

[目的]研究水体青苔对生态净化的进程与最终效果的影响。[方法]通过对水体青苔的发生机理及其对生态系统的影响进行综述及分析,并结合江苏北部水源地微污染原水生态净化研究过程中,水体青苔发生与防治工作的实际情况,探讨了适用于水源地微污染水体的青苔防治方法。[结果]在青苔暴发期前采取提高植物种植密度、定期收割、水体流态调控等预防措施,在暴发期中采取局部提高水体pH值、光干扰、生态调控等控制措施,可有效防治水体青苔。[结论]为今后水源地微污染水体生态净化工程开展青苔防治工作提供理论参考与技术依据。

[ Objective ] The aim was to study the influence of filamentous algae on the process of water ecological purification. [ Method ] The occurrence mechanism of filamentous algae and its ecological system were summarized and analyzed. Considering the ecological purification in northern Jiangsu, the occurrence and prevention of filamentous algae in water, the method to prevent filamentous algae in polluted water was discussed. [ Result ] The results showed that by measures of improving planting density, regular harvesting,water flow state control before the fila- mentous algae blooming period, together with improving local pH value,light interference and ecological control during the blooming period, can effectively control the filamentous algae blooming. [Conclusion] The study of the happening mechanism of filamentous algae provided theoreti- cal references and the technical basis in the work of filamentous algae prevention and control.